docs: def from_country(cls, country):
          """Retrieve the first datacenter id associated to a country."""
          result = cls.list({'sort_by': 'id ASC'})
          dc_countries = {}
          for dc in result:
              if dc['country'] not in dc_countries:
                  dc_countries[dc['country']] = dc['id']
  
          return dc_countries.get(country)